Improvement of vapour sampling and analysis techniques for TNT and related compounds. Sub-study 4: Vapour sampling and analysis in the project Mine Detection Dogs

Authors:

  • Carlsson Håkan
  • Kjellström Ann

Publish date: 2002-01-01

Report number: FOI-R--0760--SE

Pages: 27

Written in: English

Abstract

The purpose of this project was to evaluate the Mechem air sampling system used for mine detection with dogs, Remote Explosive Scent Tracing (REST). When using the REST technique, air samples are collected above the surface of roads and subsequently analysed by specially trained explosive sniffing dogs. The sampling is performed using a pump placed in a backpack. The air is continuously pumped through a filter designed to adsorb the explosives. In this project the sampling was focused on trinitrotoluene (TNT) and related compounds. In addition to the evaluation of the Mechem system, the sampling procedure was improved by development of new filter/adsorbent and sampling equipment. Determination of methods for storage and procedure for the introduction of filter content to the dogs, has also been performed within this project. To verify the content of explosives on the sampled filters, chemical methods for analysis of explosives were developed. The project was a sub-study of vapour sampling and analysis in the project Mine Detection Dogs implemented and funded by Geneva International Center for Humanitarian Demining (GICHD) via Swedish Rescue Services Agency (SRSA).

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